Comtech EF Data MiniMac Installation ManualOperation Manual Operation Manual - Manual (Page 109)

MINIMAC Rack Management System Installation
Rev. 0 2–7
Star Gate
Cable End
DB9 Male Pin
Signal Name
(Relative to Star Gate)
Device
Remote
DB25 Male Pin
2, 7 RX-, TX- 7, 19
4, 9 TX+, RX+ 5, 18
2 7
4
9
19
5
18
7
Figure 2-5. Star Gate RS-485 (2-Wire) MiniMAC to RSU-503 Rack Switch Cable
Star Gate
Cable End
DB9 Male Pin
Signal Name
(Relative to Star Gate)
Device Remote
RSU-503 or RFT 26-Pin
Male Circular
2, 7 RX-, TX- Pin B
4, 9 TX+, RX+ Pin C
GND Pin J
B
C
2
7
4
9 J
S h ie ld e d G ro u n d
N o t C o n n e c te d @ 9 P in e n d .
Figure 2-6. Star Gate RS-485 (2-Wire) MiniMAC to Remote